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Configuring Interface Settings
You can configure RSTP and MSTP attributes for specific interfaces,
including port priority, path cost, link type, and edge port. You may use a
different priority or path cost for ports of the same media type to indicate
the preferred path, link type to indicate a point-to-point connection or
shared-media connection, and edge port to indicate if the attached device
can support fast forwarding. (References to “ports” in this section means
“interfaces,” which includes both ports and trunks.)
Command Attributes
The following attributes are read-only and cannot be changed:
• STA State – Displays current state of this port within the Spanning
Tree. (See Displaying Interface Settings on page 3-160 for additional
information.)
- Discarding - Port receives STA configuration messages, but does
not forward packets.
- Learning - Port has transmitted configuration messages for an
interval set by the Forward Delay parameter without receiving
contradictory information. Port address table is cleared, and the port
begins learning addresses.
Console#show spanning-tree ethernet 1/5 4-214
Eth 1/ 5 information
--------------------------------------------------------------
Admin status: enabled
Role: disable
State: discarding
Path cost: 10000
Priority: 128
Designated cost: 0
Designated port : 128.5
Designated root: 32768.0012CF0B0D00
Designated bridge: 32768.0012CF0B0D00
Fast forwarding: disabled
Forward transitions: 0
Admin edge port: disabled
Oper edge port: disabled
Admin Link type: auto
Oper Link type: point-to-point
Spanning Tree Status: enabled
Console#
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